trap·​e·​zoid | \ ˈtra-pə-ˌzȯid How to pronounce trapezoid (audio) \

Definition of trapezoid

1a : a quadrilateral having only two sides parallel
b British : trapezium sense 1a
2 : a bone in the wrist at the base of the metacarpal of the index finger

Illustration of trapezoid

Illustration of trapezoid

trapezoid 1a

Keep scrolling for more

Other Words from trapezoid

trapezoidal \ ˌtra-​pə-​ˈzȯi-​dᵊl How to pronounce trapezoid (audio) \ adjective

Examples of trapezoid in a Sentence

Recent Examples on the Web It is set in a platinum ring surrounded by trapezoid-cut diamonds and comes with an estimate of $220,000-$260,000. Carol Besler, Robb Report, 21 June 2021 The most visually distinctive similarity, though, is the signature tri-color chronograph registers in shades of gray and blue, along with the trapezoid date window at 04:30 (pictured below). Carol Besler, Robb Report, 30 June 2021 The trapezoid is the predominant structure shape, not the rectangle or square. Lauren Beale, Forbes, 20 May 2021 Samsonov, who made 40 saves in his playoff debut and first action since May 1, stopped the puck in the trapezoid for his defense and was slow getting back to his crease. Mike Brehm, USA TODAY, 20 May 2021 For more than 40 years, real estate developers have been intoxicated by an asphalt trapezoid at 250 Water Street. New York Times, 6 May 2021 Scotty Bag puts a unique spin on the colorful baguette bags of late with a chic trapezoid shape. Sarah Boyd, Forbes, 15 Apr. 2021 The neighborhood is a trapezoid bounded by East 33rd Street, Greenmount Avenue, Loch Raven Road and East 25th Street. Sameer Rao,, 31 Mar. 2021 So, what's that plastic trapezoid perched atop the steering column of the 2021 Ford Mustang Mach-E? Ezra Dyer, Car and Driver, 17 Mar. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'trapezoid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of trapezoid

circa 1706, in the meaning defined at sense 1b

History and Etymology for trapezoid

New Latin trapezoïdes, from Greek trapezoeidēs trapezium-shaped, from trapeza table

Keep scrolling for more

Learn More About trapezoid

Time Traveler for trapezoid

Time Traveler

The first known use of trapezoid was circa 1706

See more words from the same year

Dictionary Entries Near trapezoid



trapezoidal projection

See More Nearby Entries 

Statistics for trapezoid

Cite this Entry

“Trapezoid.” Dictionary, Merriam-Webster, Accessed 23 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon
Seen & Heard
People are talking about

Keep scrolling for more

More Definitions for trapezoid



English Language Learners Definition of trapezoid

: a four-sided shape that has two sides that are parallel and two sides that are not parallel


trap·​e·​zoid | \ ˈtra-pə-ˌzȯid How to pronounce trapezoid (audio) \

Kids Definition of trapezoid

: a flat geometric figure with four sides but with only two sides parallel


trap·​e·​zoid | \ ˈtrap-ə-ˌzȯid How to pronounce trapezoid (audio) \

Medical Definition of trapezoid

: a bone in the distal row of the carpus at the base of the index finger

called also lesser multangular, trapezoid bone, trapezoideum

More from Merriam-Webster on trapezoid

Nglish: Translation of trapezoid for Spanish Speakers

Britannica English: Translation of trapezoid for Arabic Speakers


Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
Spell It

Can you spell these 10 commonly misspelled words?

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!